Recent questions in Chemistry

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Draw the best Lewis structure for N₂O by filling in the bonds, lone pairs, and formal charges. Assign bonds, lone pairs, radical electrons, and atomic charges where appropriate.

Aalok Sharma asked Oct 14, 2024

by Aalok Sharma

8.5k points

2 answers

1 vote

137k views

Please help me with this Chemistry homework! i will give 15 points :D

Cmgchess asked Oct 14, 2024

by Cmgchess

8.6k points

1 answer

4 votes

220k views

Factor 0.04m² - n². Options: A) (0.2m + n)(0.2m - n) B) (0.4m + n)(0.4m - n) C) (0.2m + 0.2n)(0.2m - 0.2n) D) (0.4m + 0.4n)(0.4m - 0.4n)

Gahl Levy asked Oct 14, 2024

by Gahl Levy

8.3k points

1 answer

4 votes

124k views

Why is O157:H7 deadly when HS is not?

Pritesh Acharya asked Oct 14, 2024

by Pritesh Acharya

8.1k points

1 answer

3 votes

51.9k views

What is the net ionic equation when aqueous solutions of Pb(NO3)2 and NH4Cl are mixed? (a) NH4 (aq) NO3−(aq) → NH4NO3(s) (b) Pb2 (aq) 2NO3−(aq) 2NH4 (aq) 2Cl− → PbCl2(s) (c) 2NO3−(aq) 2NH4 (aq) NH4 (aq)

Siraf asked Oct 14, 2024

by Siraf

8.4k points

1 answer

4 votes

42.9k views

Identify the base in the following acid-base reaction. NaNO₂(aq) + HI(aq) → Nal(aq) + HNO₂(aq) a. Na⁺ b. HNO₂ с. I⁻ d. HI e. NO₂⁻

Exscape asked Oct 14, 2024

by Exscape

8.0k points

1 answer

1 vote

79.1k views

If the molar concentration of H3O+ is 1.0 x 10-1, the pH is ___ and the solution is ____

Zahara asked Oct 14, 2024

by Zahara

8.0k points

1 answer

2 votes

127k views

How many mols are 170 grams of KC₂H3O₂?

Independent asked Oct 14, 2024

by Independent

9.1k points

1 answer

0 votes

203k views

What is the identity of the element with an electron configuration of 1s²2s²2p6 3s²3p²? How many electrons are located in its highest main energy level and what orbitals are they located in?

Priyashree Bhadra asked Oct 14, 2024

by Priyashree Bhadra

7.9k points

1 answer

5 votes

166k views

Proteins A and B bind to each other to form a complex, AB. Under equilibrium the concentrations of A, B and AB are 10⁻² M. The dissociation constant of this reaction is a) 10⁻⁴ M. b) 10² M. c) 1 M. d)

DorElias asked Oct 14, 2024

by DorElias

8.2k points

1 answer

5 votes

94.7k views

If 20.0 g of Pb transfers 4950 J of energy into 50.0 g of water, how much would the temperature of the water change? By how much would the metal cool?

Zondo asked Oct 14, 2024

by Zondo

7.7k points

1 answer

2 votes

229k views

About valency books say following things: 1- Valency is combining capacity of an atom with number of hydrogen atoms or double of oxygen atoms with which the atom combines. Doubt A: what is valency of C

Giorgio Gelardi asked Oct 14, 2024

by Giorgio Gelardi

7.6k points

1 answer

1 vote

60.0k views

What is the syrup and sauce rule for a blender rebel (with rebel mix)?

Hanzi asked Oct 14, 2024

by Hanzi

7.6k points

1 answer

5 votes

84.8k views

What is the color of a Biological contamination marker?

Sachu asked Oct 14, 2024

by Sachu

8.6k points

1 answer

3 votes

129k views

Which of the following compounds does not contain a polyatomic ion? Option 1: H2SO Option 2: HCN Option 3: NaOH Option 4: H2S

Sunomad asked Oct 14, 2024

by Sunomad

8.3k points

1 answer

0 votes

108k views

32P has a very short half-life of 14 days and decays into sulfur as shown below. (32/15)P> (32/16) S + e- This nuclear reaction is an example of: 1) alpha decay 2) beta plus decay 3) beta minus decay 4)

Abhiarora asked Oct 14, 2024

by Abhiarora

8.0k points

1 answer

1 vote

103k views

A mercury mirror forms inside a test tube as a result of the thermal decomposition of mercury(II) oxide: 2 HgO(s) + 2 Hg(l) + O₂(g) → Arxn - 287 kJ If 113 kJ of heat is absorbed, how many grams of Hg form?

Brage asked Oct 14, 2024

by Brage

8.0k points

1 answer

2 votes

6.7k views

Hydrocarbons Heating cyclopropane (C₃H₆) converts it to propene (CH₂ =CHCH₃). The rate law is first order in cyclopropane. If the rate constant at a particular temperature is 6.22 x 10⁻⁴⁵s⁻¹ and the concentration

Swateek asked Oct 14, 2024

by Swateek

8.1k points

2 answers

4 votes

131k views

1)Write an equation for the formation of aluminium chloride from its elements. 2)An aluminium chloride molecule reacts with a chloride ion to form the AlCl4− ion. Name the type of bond formed in this reaction.

July asked Oct 14, 2024

by July

8.1k points

1 answer

0 votes

234k views

A chemical reaction has occurred if _____________. 1) there was a long reaction time 2) a new product is formed 3) the state of matter has changed

Thehme asked Oct 14, 2024

by Thehme

7.9k points

1 answer

5 votes

153k views

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